Identical Twins Have 100 Percent of Their Genes in Common

question 142

Multiple Choice

Identical twins have 100 percent of their genes in common, though people who know them often emphasize their personality differences. Therefore, we can say that twins have the same _______________, but environmental influences may affect each twin's _________________.

• A)heritability; DNA
• B)phenotype; genotype
• C)characteristics; DNA
• D)genotype; phenotype
• E)phenotype; heritability

---

Definitions:

Lower Explosion Limit (LEL)

The lowest concentration of a particular gas or vapor in air that can produce a flash of fire in presence of an ignition source.

Propagate

To reproduce, spread, or increase in number, often used in the context of plants (via seeds or cuttings) and ideas or information.

Upper Explosion Limit (UEL)

The highest concentration of vapor in air above which propagation of flame does not occur on contact with a source of ignition.

Thermobaric Bomb

A type of explosive weapon that uses oxygen from the surrounding air to generate a high-temperature explosion, producing a blast wave of significant duration.